Articulated robotic platform

The articulated robotic platform, with its sensor-equipped support members and counter-balancing forces, addresses the precision and comfort issues in surgical cranial interventions by enabling sub-millimeter accurate positioning and repositioning of surgical tools on a patient's skull, improving surgical precision and reducing patient discomfort.

US12257009B2Active Publication Date: 2025-03-25BRAINLAB AG
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Patent Information

Application Number
US17/256713
Authority / Receiving Office
US · United States
Patent Type
Patents(United States)
Current Assignee / Owner
Priority Date
2018-07-23
Filing Date
2019-07-18
Publication Date
2025-03-25
Estimated Expiration
2041-05-06

AI Technical Summary

Technical Problem

Current surgical cranial intervention methods, such as those using large articulated robots or skull-fixed robots, face challenges in achieving sub-millimeter accuracy and precision, particularly in targeting multiple points on a patient's skull, and often cause patient discomfort due to the need for fiducial markers and anchor points.

Method used

An articulated robotic platform with support members that can change in length and orientation, equipped with positioning sensors, is integrated with an articulated robotic arm to provide counter-balancing forces, allowing for accurate positioning and repositioning of surgical tools. This platform can be either passive, relying on the robotic arm for traction, or active, with actuators to exert forces, enabling precise movement along a patient's skull.

Benefits of technology

The articulated robotic platform enhances the accuracy of surgical interventions by providing sub-millimeter precision and flexibility, allowing for quick targeting of multiple points on a patient's skull without the need for extensive pre-procedure fiducial marker placement, reducing patient discomfort and enabling the use of less expensive, lighter robotic components.

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Abstract

An articulated robotic platform is provided as an end-actuator intended to be fitted to an articulated robotic arm. One use of the articulated robotic platform is to more accurately guide surgical tools during a surgical intervention making it possible to achieve positional accuracy on the level of millimeters or fractions of a millimeter. The articulated robotic platform includes support members attached to the patient or anchoring the articulated robotic platform onto a clamp. The support members of the articulated robotic platform are capable of changing in length, and this change can be monitored by an extension measurement sensor fitted to one or more of the support members. The controller, when provided with feedback information of the extension measurement and direction of several of the legs, can calculate accurately the position of the articulated robotic platform relative to an intervention area of a patient.
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